The Naim Atom you mentioned is a very special piece of gear. It is compact, has great streaming capabilities, very well built, and sounds spectacular. I would think you would notice a good increase in SQ in it's streaming capability. BUT, as you said, it is expensive and would eat up all of your allotment of money, and then some. Just something to look at for the future. The Bluesound Node 2 would be an excellent choice in your price range. A used pair of Kef LS-50's would be pretty good too.
It's not about what I like though. It's what you want. Please due the research and go out and listen to as much equipment as possible. Look for an audio store that has a good selection of used gear too.
It's not about what I like though. It's what you want. Please due the research and go out and listen to as much equipment as possible. Look for an audio store that has a good selection of used gear too.